public class Validation {

    private String poly;
    private String sin;
    private String cos;
    private String e;
    public Validation() {
	poly = "";
	sin = "";
	cos = "";
	e = "";
    }

    public boolean validateFunction(String function) {
	if (function.matches("//w"))
	    return true;
	else
	    return false;
    }
    
    public static void main(String[] args) {
	String s = "sss";
	if(s.matches("//w")){
	    System.out.println("sdsdasd");
	}
    }

}
